33948991 has 8 divisors (see below), whose sum is σ = 36411120. Its totient is φ = 31554432.

The previous prime is 33948931. The next prime is 33948997. The reversal of 33948991 is 19984933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33948991 - 2¹³ = 33940799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33948997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15850 + ... + 17863.

It is an arithmetic number, because the mean of its divisors is an integer number (4551390).

Almost surely, 2^33948991 is an apocalyptic number.

33948991 is a deficient number, since it is larger than the sum of its proper divisors (2462129).

33948991 is a wasteful number, since it uses less digits than its factorization.

33948991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33785.

The product of its digits is 209952, while the sum is 46.

The square root of 33948991 is about 5826.5762674147. The cubic root of 33948991 is about 323.7990898664.

The spelling of 33948991 in words is "thirty-three million, nine hundred forty-eight thousand, nine hundred ninety-one".